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A.R.KBNNEY.

10E MACHINE. y

i Patented July 21, 1885.

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A. R. KENNY.,

ICE MACHINE.

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AUGUSTUS R. KENNEY, OF SAN FRANCISCO, CALIFORNIA.

ICE-MACHINE.

SPECIFICATION forming part of Letters Patent No. 322,829, dated July 21,1885.

Application filed March 6, 1885.

- of the city and county of San Francisco, Statel of California, haveinvented an Improvement in Ice-Machines; and I hereby declare thefollowing to be a full, clear, and exact description of the same.

My invention relates to a new and useful ice-machine; and it consists ina box having a sloping bottom and provided with a peculiarvertically-moving end-gate,Wedge-shaped and independent, and water tightclosed partitional cans within the box provided with evaporatingcoils,peculiar agitators within the cans and within the compartments of thebox formed by the cans, mechanism for reciprocating the agitators, andinlet and overflow and drain pipes and valves by which the cans arelsupplied, regulated, and drained, all arranged and operated in themanner I shall hereinafter fully describe.

My invention-further consists in vdetails of construction relating tothe end-gate, the cans, the agitators, and other parts.

The object of my invention is to provide a simple, practical, andeffective ice-machine,

the several advantages of which I shall de-,

scribe during the course of the speciiication.

Referring to the accompanying drawings, Figure l is a perspective viewof my ice-machine. Fig. 2 is a vertical transverse section of the same.Fig. 3 is a vertical longitudinal section. Fig. 4 is a perspectivedetail showing one of the refrigerator-cans in position, its side beingbroken away to show the interior.

A is a box, having in its ends and bottom the grooves a. B are frames,of wood or other non conductor, the bottoms and ends of which fit withinthe grooves a of the box, whereby they can be removed at pleasure, Fig.4. The frames inclose or encircle cans G, and form a non-conductoraround them, removing them from the ends and bottom of the box. Thesecans are independent of each other. They are water-tight andwedge-shaped, the apex being downward and the base at the top, Fig. 2.

Vithin each of the cans is the coil D,which consists of a pipe bent orcurved vertically, and joining the cans through their tops, as shown.The entrance end of the coil is pro- (No model.)

vided with a valve, d, and its exit end is provided with a similarvalve, d.

On the top of the box and cans is a frame, E, consisting of transverseend bars or strips and longitudinal bars or strips, the latter of whichcarry the agitators F, which consist of slats extending downward intothe compartments of the box, which are formed by the cans. The frame Eis mounted on small rollers e, whereby it may easily receivel areciprocating movement. z

Within the cans are the two-part or slotted agitators G, which extenddownwardly,strad dling the coil, and are mounted on longitudinal stripsg having small wheeled trucks g on each end traveling on short tracksg2, whereby the agitators are `adapted to receive a horizontalreciprocating movement, which is imparted by means of stems g3 extendingthrough the rear end of the cans and box connected with the wheeledtrucks. These stems may be connected to receive a simultaneous movement,or they may be moved separately. lVith one of the stems the frame E,which carries the agitators F, is connected by means of a pitman, c',and a bar, c2, whereby the agitators F are reciprocated simultaneouslywith the agitators G.

It will be observed that the cans C are so located that they divide thebox into compartments, the end or side ones of which are narrower thanthe others. The cakes of ice being frozen from the sides ofthe can onlyand are not intended to meet, it is obvious that in the central andlarger compartments there will be two cakes, and in the end compartmentsbut one. The two cakes in the same compartment are not allowed to meet,(as before mentioned,) and in the body of unfrozen liquid between themthe agitators F operate. These are therefore located centrally; but inthe end compartments they are moved beyond the central longitudinalline, in order to allow the proper space for the formation of the singleice cake. The cans are stidened by rivets X,

which pass through each from side to side.

Each can is supplied with a feed-pipe, U, at its top and with adrain-pipe, I, at its bottom, controlled by a cock, i, and united to anescapepipe, J. They are also provided with overliow pipes K, controlledby cocks 7c, joined to a common discharge-pipe, L. Thr! IOO iioor orbottom of the box A slopes downwardly from the rear to the front.

Secured to the front of the box are suitablyl forms the front end of thebox, and consequently,when pushed up, opens said end. It is accuratelybalanced by means of the chain or cable N, which passes upward toa beamin the ceiling and over suitable pulleys,and has a weight, W, attachedto its other end.

In order to cause the gate to form a close and water-tight joint withthe front ofthe box, I have upon the sides and bottomof the box theelastic or rubber packing or washers O. A bracket, l?,is secured to theend of the box, and in its front bar, p, is a binding-screw, Q, the endof which is adapted to bear against ribs upon the gate, and thus toforce said gate against the rubber packing or washers,where by a closejoint is formed.

The bar p of the bracket is maderemovable by reason of fitting insuitable sockets or slots in the end of the arms of the bracket.

The operation of the device is as follows: The gate is lowered, and bymeans of the binding-screw is pressed tightly to its seat. The sweetwater is then poured or allowed to flow into the compartments which thepartitional cans form in the box, and then brine or other suitablefreezing liquid or agent is supplied to the cans themselves through thesupplypipes U, the overfiow-pipes K indicating the quantity to besupplied and when to stop the iiow. Theevaporating-fluidisthenintroduced into the coil-pipe D, and at the sametime the agitators G F are reciprocated within the com partments andcans.

The object of the closed cans is to prevent variation from outsidetemperature and con- I centrate the cold against the sides, not lettingit escape, while the object of their wedge shape is as follows: Asbefore explained,each cake is frozen outwardly from the sides only ofthe cans. These sides being inclined by reason of the wedge shape of thecans, the A cake is consequently frozen in a slightly-inclined position,which gives it a tendency, when loosend from the side of the can, to tipover, thereby freeing itself more completely. The cakes are not frozenwedge-shaped, but rectangular,though in an inclined position.

I am aware that an ice-machine is known in which the freezing or sweetwater comparu ments are wedge shape in transverse section; but in thismachine the cake of ice is made to fill the entire compartment, andtherefore is dependent more upon the shape of the compartment itselfthan upon any partitional cans, while in my machine my result is moredependent upon and relates particularly to the inclined sides of thepartitional cans without any reference to the shape of the compartments,because as my ice cakes do not fill the compartment and are frozen'outwardly in --straight lines from the cans, they are consequentlyrectilinear and lie in an inclined position. In the machine referred tothis is not the case, for the cake is a solid one, and is frozen fromthe top as well as the sides, and is thereby not in an inclinedposition. My partitional cans are moreover independent of each other.The agitators within the compartments promote the freezing process, andthose in the cans equalize the temperature of the freezing agent. Theframes B, forming nonconductors holding the cans away from the box, keepthe ice cakes free thereof, as they form on the sides of the can only.

The sloping door of the box enables the operators to withdraw the cakeswith greater facility.

When the sweet water is frozen, the controlling-cocks of the escape ordrain pipes of the cans are opened, and all the brine or other freezingagent is drawn off. The controllingcocks of the evaporator-coil are alsoclosed, and the feed-pipes of the cans are opened and sweet water orsteam or any melting agent is forcedV or allowed to flow into them. Thisagent melts the edges or sides of the cakes,

by their tipping or inclined position. After remaining for a suitablelength of time the Sweetwater or other melting agent is drawn off in thesame manner that the brine or other freezing agent was drained. Theend-gate is then raised, and the blocks of ice are slipped out. When theend-gate is first raised, and before the cakes are `taken out, theunmelted water is rst allowed to escape and is carried off suitably.

The front bar or the bracket is removed from the end arms in order toallow the cakes to be slipped out.

The box A is provided with a cover, T, over all.

By the arrangement of supply and drain pipes and the controlling-cocksof said pipes, and the evaporator-coil, the machine herein described iswell adapted to form one of a connected series the members of which maybe simultaneously operated, or one or more may be cut out of the seriesand operated separately. Y

It is intended that the supply shall be effectedby gravity, and thatsuitably-inclined floors or chutes shall be provided in front of theboxes, by which the ice cakes may be run off with little trouble. f

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In an ice-machine, the independent partitional water-tight closedrefrigerator-cans C, in combination with the vertical evapoin described.

2. In an ice-machine, the independent partitional refrigerator-cans C,for the purpose described, said cans having each a wedge shape, the apexbeing downward, substantially as herein described.

3. In an ice-machine, the independent pal'- whereby they are freed from.the cans, assisted p ICO rator-coil D in said cans, substantially asheretitional refrigerator water-tight closed cans C, having a wedgeshape, substantially as herein described.

4. In an ice-machine, the independent partitional refrigeratorwedge-shaped cans C, in combination with the evaporator-coils D therein,whereby the freezing is effected from the sides of the cans only,substantially as herein described.

5. In an ice-machine, the horizontally-reciprocating agitators G,adapted to stir the refrigerating-brine or other freezing agent,substantially as herein described.

6. In an ice-machine, the partitional closed refrigerator-cans C, incombination with the horizontally-reciprocating agitators G within saidcans and adapted to keep the brine or other freezing agent in motion,substantially as herein described.

7. In an ice-machine, the partitional closed refrigerator-cans C and theevaporator-coils D therein, in combination with the forked or two-parthorizontal]y-reciprocating agitators G in the cans, straddling thecoils, substantially as herein described.

8. In an ice-machine, the partitional refrigerator-cans C, having shorttracks g2 in each end, in combination with the agitators G within thecans, the strips g, from which they depend, the wheeled trucks g on thestrips and traveling on the tracks, and the stems g3, secured to therear trucks and passing out of the rear of the cans, whereby ahorizontal reciprocating movement may be imparted to the agitators,substantially as herein described.

9. In an ice-machine, the box A, divided into a number of parallelsweet-Water compartments, as described, in combination with theagitators F in said compartments and the means by which they arehorizontally reciprocated, consisting of the frame E, from which theagitators depend, the pitman e', and barl e, substantially as hereindescribed.

10. In an ice-machine, the box A, and the partitional refrigerator-cansC dividing the box into a number of sweet-water compartments, incombination with the agitators F in the compartments and the movableframe E from which they depend, the agitators G in the cans, and themovable strips g from which they depend, and the mechanism by which theagitators are simultaneously reciprocated, consisting of the stems g3,secured to the strips G and extending through the rear of the cans andbox, and the pitman e', and bar e2, by which the frame Eis connectedwith one of the stems, substantially as herein described.

11. In an ice-machine, the box A, having a vertically-adjustableend-gate, a sloping bottom and grooves a in its ends and bottom, in

combination with the independent partitional refrigerators or brine-cansC, surrounded on top, bottom, and ends by non-conductingframes B, inwhich they are mounted, said frames tting the grooves ain the box andholding the cans free thereof, substantially as herein described.

12. In an ice-machine, the box A in which the cakes are formed, incombination with the vertically-moving balanced door or gate M at oneend, substantially as herein described.

13. In an ice-machine having a box in which the cakes are formed, theend-gates M for the box, adapted to move vertically in suitable guides,in combination with the means for securing a tight joint between thegate, when closed, and the end ofthe box, consisting of the rubberpacking or Washers O on the ends of the sides and bottom of the box, thebracket P, and the binding-screw Q in the bracket, adapted to press thegate against the packing O, substantially as herein described.

14. In an ice-machine, the box A in which the ice is formed, the rubberpacking or washers O on the ends of the sides and bottom of the box, andthe bracketP, the front bar, p, of which is removable to permit theWithdrawal of the ice, in combination with the verticallymoving gate M,and the binding-screw Q in the bracket adapted to press the gate to itsseat against the packing, substantially as herein described.

15. An ice-machine consisting of the box A, the vertically-movingend-gate M, the closed partitional and wedge-shaped refrigerator-cans C,dividing the box into compartments in which the ice cakes are formed,said cans having inlet and outlet pipes, the evaporator-coils D in thecans, and the horizontally-reciprocating agitators F G in thecompartments and cans,` all arranged and adapted to operatesubstantially as herein described.

In witness whereof I have hereunto' set my hand.

AUGUSTUS R. KEN N EY.

Witnesses:

C. D. COLE, J. H. BLOOD.

IOO

